Grate support



Dec. 12, 1933. J. p MAGQS 1,939,358

GRATE SUPPORT Filed April 17, 1930 Inc/6722 607 J07zn was Patented Dec. 12, 1933 UNITED STATES" 1,939,358 GRATE surroar John P. Magos, Chicago, 111., assignor to Crane Co., Chicago, Ill., a corporation of Illinois Application April 17, 1930. Serial No. 444,960

3 Claims.

This invention relates to end supports for furnace grates and has for its purpose to provide a support for grates of furnaces and boilers or the like which will permit removal thereof for replacement and repair and which will permit rocking of the grate and yet prevent displacement thereof during shaking operations.

The nature of this invention will be more apparent from the following description given in connection with the drawing in which:

Fig. 1 is a sectionon line 1--1 of Fig. 2 illustrating one end support constructed in accordance with this invention.

Fig. 2 is a side elevation partly in section and,

Fig. 3 is a top plan view. 1

A portion of a conventional grate bar which may be of any desired length or shape is illustrated and indicated by the reference numeral 1. One end only of the grate is shown, it being understood that the other end may be exactly the same. The end portion of the grate terminates in a tapered round trunnion portion 2, the. end of which is reduced to form a two sided fiat end portion 3.

Formed integrally with a portion of the furnace or as a separable piece therefrom is a bearing or support 4 having a U-shaped boss 6 projecting laterally therefrom the width of the open end of the boss being sufficient to receivethe tapered end portion 2 of thugrate, the boss 6 thus providing a trunnion rest or support for the grate.

In order to prevent the grate from moving upwardly and becoming dislodged from the trunnion the U-shaped boss is provided with a pair of upwardly and inwardly projecting lugs 7 which curve and close toward each other at their upper ends leaving a space therebetween only sufficient to permit the passage of the reduced portion 3 of the grate therebetween when presented edgewise thereto.

It can be seen from the foregoing that the grate can only be removed from the trunnion when in two positions, that is, with either edge of the reduced portion 3 in position to slide through the reduced opening between lugs 7. During shaking operations the grate will be partially rotated and during the greater portion of the arcuate movements the reduced portion 3 will not be in position to permit the passage thereof between lugs '7.

In order to permit shaking of the grate the usual mechanism (not shown) may be applied to the reduced portion 3. If desired the support '4 may be bored to permit a shaking tool to be inserted. The shaking mechanism forms no part of this invention and is therefore not shown nor 2 described.

It follows from the above description that there is provided a grate support which will permit withdrawal of the grate for repairs or replacements and yet which will prevent the grate from becoming dislodged during the' normal use thereof.

It is obvious that minor changes may be made in the details of construction without departing from the spirit and scope of this invention as defined by the claims appended hereto.

I claim:

1. In combination, a grate terminating in a trunnion having a reduced portion having parallel sides arranged perpendicularly to the grate surface, a supporting bearing for said grate having a main portion arranged to engage the major portion of the trunnion of said grate, and a second portion disposed laterally as a continuation of said main portion arranged to receive the reduced end of the trunnion, said latter portion of the bearing having a restricted opening there- 'into of a width substantially equal to the thickness of the reduced end of the trunnion and adapted to cooperate therewith and retain the trunnion withinsaid support upon rotation of said grate in either direction.

2. In combination, a grate terminating in a trunnion having a reduced end portion having parallel sides arranged perpendicularly to the grate surface, a supporting bearing for said grate having a main portion arranged to engage the major portion of the trunnion of said grate, and a second portion disposed laterally as a continuation of said main portion arranged to receive the reduced end of the trunnion, said latter portion of the bearing having a restricted opening thereinto of a width substantally equal to the thickness of the reduced end of the trunnion and adapted to cooperate therewith and retain the trunnion within said support upon rotation of said grate in either direction.

3. In combination, a grate terminating in a trunnion having a reduced portion having parallel sides arranged perpendicularly to the grate surface, a supporting bearing for said grate arranged to receive the trunnion end of said grate, said bearing having a restricted opening thereinto of a width substantially equal to the thickness between the parallel sides of the reduced portion of the trunnion and adapted to cooperate therewith and retain the trunnion within said support upon rotation of said grate in either direction.

, JOHN P. MAGOS. 

